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    <meta charset="UTF-8">
    <title>课程内部上方</title>
    <link rel="stylesheet" href="index.css">

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<body>

<div class="box">
    <div class="content bx">
        <div class="left">
            <div class="top1">
                <div class="title1">
                    <span>课程大纲</span>
                </div>
                <div class="video">视频:前言(上).mp4</div>
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            <div class="center1">
                <div class="title2">
                    <span>课程考试</span></div>
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            <div class="bottom1">
                <div class="title3">
                    <span>讨论</span>
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            </div>
        </div>
        <div class="right">
            <div class="top2">
                <span>学习状态:已学习</span>
                <p>课程学习进度分别和课程章节进度、章节数量有关。</p>
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            <div class="center2">讲师</div>
            <div class="bottom2">参加学员</div>
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